linux-kernel - Re: [Xen-devel] [PATCH] PCI: Mark expected switch fall-throughs

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Date:   Wed, 20 Mar 2019 19:27:32 +0000
From:   Andrew Cooper <andrew.cooper3@...rix.com>
To:     "Gustavo A. R. Silva" <gustavo@...eddedor.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
CC:     <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>,
        <xen-devel@...ts.xenproject.org>
Subject: Re: [Xen-devel] [PATCH] PCI: Mark expected switch fall-throughs

On 20/03/2019 18:27, Gustavo A. R. Silva wrote:
> diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
> index 6fa1627ce08d..445b51db75b0 100644
> --- a/drivers/pci/proc.c
> +++ b/drivers/pci/proc.c
> @@ -222,6 +222,7 @@ static long proc_bus_pci_ioctl(struct file *file, unsigned int cmd,
>  		}
>  		/* If arch decided it can't, fall through... */
>  #endif /* HAVE_PCI_MMAP */
> +		/* fall through */

Surely it would be better to transpose the #endif and its previous line,
than to add a second fallthrough ?

~Andrew